| Company | Timeline | Status | |
Assistive Listening Systems Limited Director • Secretary | 12 Apr 2012←4 Years→18 Oct 2016 | Dissolved | |
Assistive Hearing Limited Director • Secretary | 5 Apr 2012←4 Years→18 Oct 2016 | Dissolved | |
| Elite Audio Limited Director • Administrator | 4 Sep 2003←14 Years→1 Apr 2018 | Active | |
